vish2207
Newbie level 5
Hi,
I have worked on the battery powered devices for the first time. So, this might be very basic problem for every one who have worked with portable devices.
I have used 2 Li-Ion batteries in series to get 5V using LM7805. I have used MCP73213 for charging of 2 cell Li-Ion batteries. I am attaching the power diagram through which I am charging the Battery with programmed current of 200mA. I don't have any problem with charging.
When I keep the battery connected all the time with device, it gets deep discharged despite putting my MCU in to sleep mode which draws about 100uA. The power that is being drawn mostly is by LM7805, which is about 3mA in idle condition. How can I prevent the deep discharge of the battery and keep connected battery to the device.
**broken link removed**
Thanks.
I have worked on the battery powered devices for the first time. So, this might be very basic problem for every one who have worked with portable devices.
I have used 2 Li-Ion batteries in series to get 5V using LM7805. I have used MCP73213 for charging of 2 cell Li-Ion batteries. I am attaching the power diagram through which I am charging the Battery with programmed current of 200mA. I don't have any problem with charging.
When I keep the battery connected all the time with device, it gets deep discharged despite putting my MCU in to sleep mode which draws about 100uA. The power that is being drawn mostly is by LM7805, which is about 3mA in idle condition. How can I prevent the deep discharge of the battery and keep connected battery to the device.
**broken link removed**
Thanks.
